CVE-2020-11305

Physical memory corruption via boot argument length wraparound

Published Mar 17, 2021 · Updated Aug 4, 2024

Integer overflow in Qualcomm Snapdragon Consumer IOT, Industrial IOT, and Voice & Music allows physically proximate attackers to corrupt memory. The boot component accepts arguments without an adequate length check, allowing integer wraparound to make a subsequent buffer operation exceed its allocation. Physical access is required, but Qualcomm has not disclosed the affected routine, argument source, or precise post-corruption consequence.

CVSS severity6.8
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Qualcomm Snapdragon Consumer IOT, Industrial IOT, and Voice & Music allows physically proximate attackers to corrupt memory. The boot component accepts arguments without an adequate length check, allowing integer wraparound to make a subsequent buffer operation exceed its allocation. Physical access is required, but Qualcomm has not disclosed the affected routine, argument source, or precise post-corruption consequence.

The record

CVE
CVE-2020-11305
Published
Mar 17, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-680, CWE-119
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.8QualcommCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-680Integer Overflow to Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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